Allen Walker is a young Exorcist who has a cursed eye that can see the suffering of the Akumas created by The Millenium Earl. He travels to England to the Headquarters of the Exorcists where his Master has sent him to meet with the other Exorcists. The battle with the Millenium Earl and the Noah Family vs. the Exorcists intensifies when some of the best Exorcists begin to get killed by hoards of Akuma. Japan takes center stage in this end of 19th Century plot in order to not let the entire human race be turned into Akumas and the Exorcists have the power of "Innocence" that was given to them by God on their side.
-taken from AnimeNewsNetwork

Picture	Real Name	Description
	Allen Walker	Allen Walker is the main protagonist of D.Gray-man. He is an Exorcist of British origin and also the youngest to date.His left eye has the ability to see souls that have been trapped in akuma's, and his left arm contains a parasitic "innocence" that turns his arm into an anti-akuma weapon.
	Yuu Kanda	An 18 year old Exorcist from Japan. He can recover much faster than ordinary humans due to a mysterious tattoo above his heart (which looks like a Sanskrit letter). His purpose in life is to find a person that he refers to as "that someone"; which will be hard but until then, he will never allow himself to die. He has a harsh tongue, foul mouth and a cold manner, and tends to say "Ch" a lot.
	Lavi	A cheerful red-haired Exorcist of mixed race, who aims to become a Bookman and is working along the Black Order just to be close to the events that must be seen. To help him, he developed an incredible memory:
	Lenalee Lee	Komui's younger sister, and assistant Head Officer. She is Chinese, and 16 years old. Her parents were killed by an Akuma when she was very young. Because she is an Accommodator, the Black Order took her away from her only remaining family member (Komui) to Headquarters against her will. For three years she was never allowed to leave the place, which felt like a prison to her.